/* * test-bus.c * ---------- * Test raw read/write performance across the EIM or FMC bus. * * Copyright (c) 2015, NORDUnet A/S All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * - Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of the NORDUnet nor the names of its contributors may * be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include #include #define TEST_NUM_ROUNDS 2000000 /* * Sanity test - can we read and write the dummy register? */ static int sanity(const hal_core_t *board_core) { uint32_t rnd = 0xdeadbeef, data; hal_error_t err; if (board_core == NULL) { printf("initialization failed (is the bitstream loaded?)\n"); return 1; } if ((err = hal_io_write(board_core, 0xFF, (const uint8_t *) &rnd, sizeof(rnd))) != HAL_OK) { printf("writing dummy: %s\n", hal_error_string(err)); return 1; } if ((err = hal_io_read(board_core, 0xFF, (uint8_t *) &data, sizeof(data))) != HAL_OK) { printf("reading dummy: %s\n", hal_error_string(err)); return 1; } if (data != rnd) { printf("Data bus fail: expected %08x, got %08x, diff %08x\n", rnd, data, data ^ rnd); return 1; } return 0; } /* * Time a test. */ static void _time_check(char *label, const struct timeval t0, const int err) { struct timeval t; float rounds; gettimeofday(&t, NULL); t.tv_sec -= t0.tv_sec; t.tv_usec -= t0.tv_usec; if (t.tv_usec < 0) { t.tv_usec += 1000000; t.tv_sec -= 1; } rounds = (float)TEST_NUM_ROUNDS/((float)t.tv_sec + ((float)t.tv_usec / 1000000)); printf("%s%lu.%06lu seconds, %u/sec\n", label, t.tv_sec, t.tv_usec, (unsigned)rounds); } #define time_check(_label_, _expr_) \ do { \ struct timeval _t; \ gettimeofday(&_t, NULL); \ int _err = (_expr_); \ _time_check(_label_, _t, _err); \ err |= _err; \ } while (0) /* * Read and write over and over again. */ static int test_read(const hal_core_t *board_core) { uint32_t i, data; hal_error_t err; for (i = 0; i < TEST_NUM_ROUNDS; ++i) { if ((err = hal_io_read(board_core, 0xFF, (uint8_t *) &data, sizeof(data))) != HAL_OK) { printf("reading dummy: %s\n", hal_error_string(err)); return 1; } } return 0; } static int test_write(const hal_core_t *board_core) { uint32_t i; hal_error_t err; for (i = 0; i < TEST_NUM_ROUNDS; ++i) { if ((err = hal_io_write(board_core, 0xFF, (const uint8_t *) &i, sizeof(i))) != HAL_OK) { printf("writing dummy: %s\n", hal_error_string(err)); return 1; } } return 0; } int main(void) { const hal_core_t *board_core = hal_core_find(NOVENA_BOARD_NAME, NULL); int err = 0; if (sanity(board_core) != 0) return 1; time_check("read ", test_read(board_core)); time_check("write ", test_write(board_core)); return err; } 'author Fredrik Thulin <fredrik@thulin.net> 2016-06-24 13:13:37 +0200 committer Fredrik Thulin <fredrik@thulin.net> 2016-06-24 13:13:37 +0200 Masterkey functions now return hal_error_t as suggested by Rob.' href='/sw/stm32/commit/projects/hsm/mgmt-masterkey.c?h=rsa_timing&id=76a0f707cd0bd10fc96bc50fb81ba0248915b5e2'>76a0f70

































                                                                           
                                                                
                           



                           
 


                        

                                                                  
             


                   
                                                   

                     
                   
                              
                                     
















                                                                              
                                                







                                                                                                 
                       
 



                      

                                              
                                            
                                                                                         
 
                                         
                                                                                         
 


                  
                                                                      
                                                                                                  

                                  
                    

          






                                                                                  
                                                   
                             

     






                                                                                                             
                                                   

                             
 

                                                             
            
                                                                                            



                  

                                                                                              

                      
                                                                               

 

                                                                                                

                    



                      
                                                                  

                                                                 
                                                                                                    





                                                                                                       

                      
                                                                         



                                                                                                         

                    



                      
                                                               

                                                                
                                                                                                   





                                                 

                                                                                           
                          
                                                                                                                 

                       

                                                                                                                         
                         


                                                                                                                                 
 
                                

                                                                                                                                                    
                                  
                                                                                                                                         
 
/*
 * mgmt-masterkey.c
 * ----------------
 * Masterkey CLI functions.
 *
 * Copyright (c) 2016, NORDUnet A/S All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 *
 * - Neither the name of the NORDUnet nor the names of its contributors may
 *   be used to endorse or promote products derived from this software
 *   without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/* Rename both CMSIS HAL_OK and libhal HAL_OK to disambiguate */
#define HAL_OK CMSIS_HAL_OK
#include "stm-init.h"
#include "stm-uart.h"
#include "mgmt-cli.h"
#include "mgmt-masterkey.h"

#undef HAL_OK
#define LIBHAL_OK HAL_OK
#include <hal.h>
#warning Refactor so we do not need to include hal_internal.h here
#include <hal_internal.h>
#undef HAL_OK

#include <stdlib.h>

static char * _status2str(const hal_error_t status)
{
    switch (status) {
    case LIBHAL_OK:
	return (char *) "Set";
    case HAL_ERROR_MASTERKEY_NOT_SET:
	return (char *) "Not set";
    default:
	return (char *) "Unknown";
    }
}

static int _parse_hex_groups(uint8_t *buf, size_t len, char *argv[], int argc)
{
    int i;
    uint32_t *dst = (uint32_t *) buf;
    uint32_t *end = (uint32_t *) buf + len - 1;
    char *err_ptr = NULL;

    if (! argc) return 0;

    for (i = 0; i < argc; i++) {
	if (dst >= end) return -1;
	*dst++ = strtoul(argv[i], &err_ptr, 16);
	if (*err_ptr) return -2;
    }

    return 1;
}

static int cmd_masterkey_status(struct cli_def *cli, const char *command, char *argv[], int argc)
{
    hal_error_t status;

    command = command;
    argv = argv;
    argc = argc;

    cli_print(cli, "Status of master key:\n");

    status = hal_mkm_volatile_read(NULL, 0);
    cli_print(cli, "  volatile: %s / %s", _status2str(status), hal_error_string(status));

    status = hal_mkm_flash_read(NULL, 0);
    cli_print(cli, "     flash: %s / %s", _status2str(status), hal_error_string(status));

    return CLI_OK;
}

static int _masterkey_set(struct cli_def *cli, char *argv[], int argc,
                          char *label, hal_error_t (*writer)(const uint8_t * const, const size_t))
{
    uint8_t buf[KEK_LENGTH] = {0};
    hal_error_t err;
    int i;

    if (argc == 0) {
        /* fill master key with yummy randomness */
        if ((err = hal_get_random(NULL, buf, sizeof(buf))) != LIBHAL_OK) {
            cli_print(cli, "Error getting random key: %s", hal_error_string(err));
            return CLI_ERROR;
        }
        cli_print(cli, "Random key:\n");
        uart_send_hexdump(buf, 0, sizeof(buf) - 1);
        cli_print(cli, "\n");
    }

    else {
        if ((i = _parse_hex_groups(&buf[0], sizeof(buf), argv, argc)) != 1) {
            cli_print(cli, "Failed parsing master key, expected up to 8 groups of 32-bit hex chars (%i)", i);
            return CLI_ERROR;
        }

        cli_print(cli, "Parsed key:\n");
        uart_send_hexdump(buf, 0, sizeof(buf) - 1);
        cli_print(cli, "\n");
    }

    if ((err = writer(buf, sizeof(buf))) == LIBHAL_OK) {
	cli_print(cli, "Master key set in %s memory", label);
    } else {
	cli_print(cli, "Failed writing key to %s memory: %s", label, hal_error_string(err));
    }
    return CLI_OK;
}

static int cmd_masterkey_set(struct cli_def *cli, const char *command, char *argv[], int argc)
{
    command = command;

    return _masterkey_set(cli, argv, argc, "volatile", hal_mkm_volatile_write);
}

static int cmd_masterkey_erase(struct cli_def *cli, const char *command, char *argv[], int argc)
{
    hal_error_t err;

    command = command;
    argv = argv;
    argc = argc;

    if ((err = hal_mkm_volatile_erase(KEK_LENGTH)) == LIBHAL_OK) {
	cli_print(cli, "Erased master key from volatile memory");
    } else {
	cli_print(cli, "Failed erasing master key from volatile memory: %s", hal_error_string(err));
    }
    return CLI_OK;
}

static int cmd_masterkey_unsecure_set(struct cli_def *cli, const char *command, char *argv[], int argc)
{
    command = command;

    return _masterkey_set(cli, argv, argc, "flash", hal_mkm_flash_write);
}

static int cmd_masterkey_unsecure_erase(struct cli_def *cli, const char *command, char *argv[], int argc)
{
    hal_error_t err;

    command = command;
    argv = argv;
    argc = argc;

    if ((err = hal_mkm_flash_erase(KEK_LENGTH)) == LIBHAL_OK) {
	cli_print(cli, "Erased unsecure master key from flash");
    } else {
	cli_print(cli, "Failed erasing unsecure master key from flash: %s", hal_error_string(err));
    }
    return CLI_OK;
}

void configure_cli_masterkey(struct cli_def *cli)
{
    struct cli_command *c = cli_register_command(cli, NULL, "masterkey", NULL, 0, 0, NULL);

    /* masterkey status */
    cli_register_command(cli, c, "status", cmd_masterkey_status, 0, 0, "Show status of master key in RAM/flash");

    /* masterkey set */
    cli_register_command(cli, c, "set", cmd_masterkey_set, 0, 0, "Set the master key in the volatile Master Key Memory");

    /* masterkey erase */
    cli_register_command(cli, c, "erase", cmd_masterkey_erase, 0, 0, "Erase the master key from the volatile Master Key Memory");

    struct cli_command *c_unsecure = cli_register_command(cli, c, "unsecure", NULL, 0, 0, NULL);

    /* masterkey unsecure set */
    cli_register_command(cli, c_unsecure, "set", cmd_masterkey_unsecure_set, 0, 0, "Set master key in unprotected flash memory (if unsure, DON'T)");

    /* masterkey unsecure erase */
    cli_register_command(cli, c_unsecure, "erase", cmd_masterkey_unsecure_erase, 0, 0, "Erase master key from unprotected flash memory");
}